Police have restricted travel on two roads near the facility, she told CNN. The incident is confined to the UPS building, Sellitto said.

The county received word of an active shooter situation around 8:30 a.m. ET, she said.

The building, located in an industrial district of the south New Jersey township of 6,000, is a bulk mail processing facility, UPS said.

“We are working with law enforcement as they respond and cannot provide information about the identity of people involved at this time,” the company said on Twitter.

In a tweet just before 10 a.m. ET, the New Jersey State Police said local police were responding to an incident in Logan Township.

The township’s school district is under modified lockdown, and no one can enter or leave any of its schools after police notified the district of “police activity in a nearby industrial park,” Superintendent Patricia Haney said.

The nearby Swedesboro-Woolwich School District said it is monitoring the situation. The students are safe, the district said in a note to parents.